• Dave Chinner's avatar
    xfs: fix uninitialised variable in xfs_rtbuf_get() · 0b9e3f6d
    Dave Chinner authored
    Results in this assert failure in generic/090:
    
    XFS: Assertion failed: *nmap >= 1, file: fs/xfs/xfs_bmap.c, line: 4363
    .....
    Call Trace:
     [<ffffffff814680db>] xfs_bmapi_read+0x6b/0x370
     [<ffffffff814b64b2>] xfs_rtbuf_get+0x42/0x130
     [<ffffffff814b6f09>] xfs_rtget_summary+0x89/0x120
     [<ffffffff814b7bfe>] xfs_rtallocate_extent_size+0xce/0x340
     [<ffffffff814b89f0>] xfs_rtallocate_extent+0x240/0x290
     [<ffffffff81462c1a>] xfs_bmap_rtalloc+0x1ba/0x340
     [<ffffffff81463a65>] xfs_bmap_alloc+0x35/0x40
     [<ffffffff8146f111>] xfs_bmapi_allocate+0xf1/0x350
     [<ffffffff8146f9de>] xfs_bmapi_write+0x66e/0xa60
     [<ffffffff8144538a>] xfs_iomap_write_direct+0x22a/0x3f0
     [<ffffffff8143707b>] __xfs_get_blocks+0x38b/0x5d0
     [<ffffffff814372d4>] xfs_get_blocks_direct+0x14/0x20
     [<ffffffff811b0081>] do_blockdev_direct_IO+0xf71/0x1eb0
     [<ffffffff811b1015>] __blockdev_direct_IO+0x55/0x60
     [<ffffffff814355ca>] xfs_vm_direct_IO+0x11a/0x1e0
     [<ffffffff8112d617>] generic_file_direct_write+0xd7/0x1b0
     [<ffffffff8143e16c>] xfs_file_dio_aio_write+0x13c/0x320
     [<ffffffff8143e6f2>] xfs_file_aio_write+0x1c2/0x1d0
     [<ffffffff81174a07>] do_sync_write+0xa7/0xe0
     [<ffffffff81175288>] vfs_write+0xa8/0x160
     [<ffffffff81175702>] sys_pwrite64+0x92/0xb0
     [<ffffffff81b68f69>] system_call_fastpath+0x16/0x1b
    Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
    Signed-off-by: default avatarBen Myers <bpm@sgi.com>
    0b9e3f6d
xfs_rtalloc.c 60.7 KB